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Why is x86 ugly? Why is it considered inferior when compared to others? [closed]

...instructions. In the modern era this cost is becoming vanishingly small as CPUs become more and more limited by memory bandwidth than by raw computation, but many "x86 bashing" articles and attitudes come from an era when this cost was comparatively much larger. Update 2016: Anandtech has posted a d...
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Are Java static calls more or less expensive than non-static calls?

...n variable, and looping if not true. I suppose the results will vary from CPU to CPU, and from JVM to JVM, so give it a try and see what you get: import java.io.*; class StaticVsInstanceBenchmark { public static void main( String[] args ) throws Exception { StaticVsInstanceBenchma...
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How to measure time taken between lines of code in python?

... If you want to measure CPU time, can use time.process_time() for Python 3.3 and above: import time start = time.process_time() # your code here print(time.process_time() - start) First call turns the timer on, and second call tells you how m...
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Nodejs Event Loop

...'s perspective: Script engine starts execution of the script. Any time a CPU bound operation is encountered, it is executed inline (real machine), in its completeness. Any time an I/O bound operation is encountered, the request, and its completion handler are registered with an 'event machinery' (...
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记一次LVS/Nginx环境下的访问控制 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...。莫非小偷已经突破锁头的限制?不能够啊!直觉告诉我问题应该和 LVS 有关,可惜我对 LVS 的了解极其匮乏,唯一知道的线索就是项目用的是 FULLNAT 模式,那就以此为切入点开始挖掘: LVS FULLNAT 所谓 FULLNAT 模式,是指当用...
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据说这是一个程序员的手机......... - 轻松一刻 - 清泛网 - 专注C/C++及内核技术

...坏在半路上了。于是两位工程师和一位经理就如何修车的问题展开了讨论。硬件工程师说:“我可以用随身携带的瑞士军刀把车坏的部分拆下来,找出原因,排除故障。”项目经理说:“根据经营管理学,应该召开会议,根据问...
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VS Debug调试模式下内存泄露检测原理 - C/C++ - 清泛网 - 专注C/C++及内核技术

...前已经释放过了,或者根本就没分配过,可能存在潜在的问题)。程序退出的时候,如果链表还有数据,说明存在内存泄露,输出链表中的数据。 MS CRT已支持内存泄露的检测,使用MFC向导生成的工程,在DEBUG模式下,默认会...
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解决:vs2010调试程序时出现: “当前不会命中断点。源代码与原始版本不同...

... 二、新建解决方案,新建测试项目均不会出现此问题。则问题应该出现在出问题的解决方案设置或项目设置上,怀疑调试时候,修改的程序集没有重新编译。, 查看程序的“配置管理器”,将 “生成” 勾选,再试,问...
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如何跟程序员谈一场没有Bug的恋爱 - 杂谈 - 清泛网 - 专注C/C++及内核技术

...,原因无他:呆萌又多金。但如何和程序员相处一直是个问题,这篇文章就教你如何优(xin)雅(j 现在越来越多的妹子把恋爱目标锁定在程序员上,原因无他:呆萌又多金。但如何和程序员相处一直是个问题,这篇文章就教...
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一次「Too many open files」故障 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...务不可用故障,于是我惯性的判断应该还是 ES_HEAP_SIZE 的问题,不过登录服务器后发现日志里显示大量的「Too many open files」错误信息。 那么 ElasticSearch 设置的最大文件数到底是多少呢?可以通过 proc 确认: shell> cat /proc/<PID>/l...